Valve-regulator for oil-engines.



M. R. MATTI.

VALVE REGULATOR FOR. OIL ENGINES.

APPLICATION TILED APR.25, 1912.

LEQLEEQ, Patented June 30,1914

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VALVE- REGULATOR FOR GIL-ENGINES.

orena Specification of Letters Patent.

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Original application zfilcd September .14, .-1910, Serie1 No. 581,975. Divided. and this application filed Kpril '25, 1912. Serial \No. 893,172.

T 0 all whom may concern Be it known that 1, MAX RICHAR l d a'rrr, a subject of the King of Sweden, residing at Fa'lun. in the Kingdom of Sweden, have invented certain new and useful Improvements in Valve-Regulators for Gil-Engines, of which the following is a specification.

My present invention relates *to gas or oil engines of the hind where the cam surface or surfaces actuating the pump or air valves are arranged on reciprocating -bars.

This application. is a division of my application Serial No. 581,975, flled by me, upon which Patent No. 1,074,000 dated September 23d, 1913, has been granted.

The invention has for its object to make it possible to regulate the said cam carrying organ during the run of the engine in such a ay that the situation of the anovnig path of the cam or cams can be changed without changing the length of said moving path. By this the moment of introduction of the air or the oil or both into the cylinders can be changed during the run of the engine.

The invention consists therein that be tween the cam carrying organs and the driving means driving same there are inserted rotatable adjusting means. By rotating same the distance between the cam carrying organ and the driving means can be changed. The said rotatable means for this purpose suitably consist of a shell slidingly and turnably connected with the one part and rotatably connected with the other part.

The invention. is shown on the annexed drawing.

Figure 1 shows from the side and F g. 2 in plan the arrangement in connectlon with a machine with two cylinders. Fig. 3 is a detailed view on a greater scale of one embodiment of the invention.

In Figs. 1 and 2 the governor shaft 6 of the engine a is dziven from the engine shaft by means of a screw "transmission f or in any other suitable way. The governor 0 acts'by means of the levers (Z upon the regulating shaft 0', which is movahly arranged in the direction of its length. On the shaft Z) there is arranged an eccentric g, working on the reciprocating bar 2' by means of the rod 71, said bar 2' being parallel to the shaft 6. The bar is provided with a cam surface is, against which the rod Z abuts by means of the roll m. On the reciprocating movement of the her 2' the rod Z will of course receive a reciprocating motion in the direction of its length. The rod Z is adapted to be connected with the oilpump or the admission or exhaust valve for the air or the oil for the purpose of actuating the same when moving. It is clear that the cam surface 7.". can be arranged on the bar land 'the roll m on the bar i.

In order that it may be possible to adjust the cam surface 70, it during the run of the machine, thereby regulating the motion of the rod Z and the valve connected with it, the bar 1' is connected with the eccentric in such a way as to make it possible to adjust the distance between 0 and 2 during the run of the motor. According to the embodiment shown in Fig. 3 this is performed by the following device: 2' is the cam carrying bar, driven from the eccentric g. 1 is a fixed part, wherein the shell 2 is turna'bly but not slidingly arranged. Said shell 2 embraces another shell 3 in such a way that upon turning of shell 2 the shell dis also turned, whereby, however, the latter one can slide in the former one in the direction of its length. This suitably is performed by providing one of the shells with longitudinal grooves, wherein projections from the other shell project. The shell 3 is provided with a flange 8, which is turnably but not slidingly connected with the bar 2'. This is performed by the bar a being provided at its end with a head o, for instance a nut, which together with a flange on the bar 2' embraces the said flange 8. The shell 3 has the shape of a nut and is threaded on its inner surface. It embraces the scrcw threaded bolt 4, which is provided with an ear 6, connected to the eccentric g by meansof a pin 7.

The device is adjusted in the following way: During the rotation of the eccentric the parts 7, 6, 4, 3, 8, 5 and 2' will receive reciprocating motion. When the shell 2 is turned, the shell 3 will also be turned and on account of the screw meshing of the parts 3 and 4 the said parts, whereof 4 can not turn, will change their axial relative position, whereby the distance between the pin 7 and the bar i will also be changed.

It is, further, possible to modify the construction by making only the cams but not the carrying bars adjustable. Cams can be substituted for the eccentric g.

. the oil, the rod Z in Figs. 1 and 2, connectkey '0, being movable on the shaft e.

upon the position of the said shaft 0.

ed with the oil pump, is provided with a projection 25, cooperating with the inclined surface u of the shaft 6. When this shaft is moved by the action of the governor 0, the rod Z-will abut against the said inclined surface a at an earlier or later moment, depending Hereby the motion of the said rod Z will be varied in correspondence to the varying position of the shaft 6 and thereby the quantity of oil introduced in the cylinder, will be varied.

In order that it may be possible to regu-- late the action of the inclined surface by hand, the said surface to is arranged on a 1s a screw, by means of whichthe position of the key 77 can be secured when adjusted. Q

Having now fully described my invention, what I claim and desire to protect by Letters Patent is I 1. In oil engines, in combination, a longitudinally adjustable member having a reciprocating motion, and composed of two relatively adjustable sections and means for adjusting the sections rotatively to each other during the run of the engine, said means including a rotatable and longitudinally immovable adjusting part.

2. In oil engines, in combination, a longitudinally adjustable member having a reciprocating motion, and adjusting means for said memberincluding a rotatable longitudinally immovable part.

3. In oil engines, in combination, a telescopic member havin a reciprocating motion and means for a justing the length of said member duringv the run of the e ygine, said means consistin of a 'otat-able, ongitudinally, movable adjus 'ng part and a rotatable, longitudinally immovable part for rotating said longitudinally movable part.

4:. In oil engines, in combination, a longitudinally, reciprocating member made in two relatively adjustable sections, a shell having a flange embracing one of said sections and having threads or inclined grooves cooperating with threads or inclined grooves on-a bolt, carried by the other for said sections, a rotatable, longitudinally immovable shell engaging the first named shell.

5. In oil engines, in combination, a memher having a reciprocating motion and formed in two sections, a shell having a flange embracing one of said sections and having threads or inclined grooves cooperating with threads or inclined grooves on the other section, and a second shell engaging the first named ranged in a fixed part.

In testimony whereof I have aiiixed my signature in presence of two witnesses.

v MAX RICHARD vMAT'II.

Witnesses G. HAMMAR, E. M. LUNDSTROM.

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